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#include "sample4.h"
#include "gtest/gtest.h"

namespace {
// Tests the Increment() method.

TEST(Counter, Increment)
{
    Counter c;

    // Test that counter 0 returns 0
    EXPECT_EQ(0, c.Decrement());

    // EXPECT_EQ() evaluates its arguments exactly once, so they
    // can have side effects.

    EXPECT_EQ(0, c.Increment());
    EXPECT_EQ(1, c.Increment());
    EXPECT_EQ(2, c.Increment());

    EXPECT_EQ(3, c.Decrement());
}

} // namespace
